// A simple program that computes the square root of a number
#include <cmath>
#include <cstdlib>
#include <iostream>
#include <string>
#include "TutorialConfig.h"

int main(int argc, char* argv[])
{
	if (argc < 2) {
		// report version
		std::cout << argv[0] << " Version " << Tutorial_VERSION_MAJOR << "."
			<< Tutorial_VERSION_MINOR << std::endl;
		std::cout << "Usage: " << argv[0] << " number" << std::endl;
		return 1;
	}

  // convert input to double
  const double inputValue = std::atof(argv[1]);

  // calculate square root
  const double outputValue = sqrt(inputValue);
  std::cout << "The square root of " << inputValue << " is " << outputValue
            << std::endl;
  return 0;
}
